<template>
  <view v-if="goods_info.goods_name" class="goods-detail-container">
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item, index) in goods_info.pics" :key="index">
        <!-- 把当前点击图片的索引传到preview处理函数中 -->
        <image :src="item.pics_big" mode="" @click="preview(index)"></image>
      </swiper-item>
    </swiper>
    <!-- 商品信息区域 -->
    <view class="goods-info-box">
      <!-- 商品的价格 -->
      <view class="price">￥{{goods_info.goods_price}}</view>
      <!-- 信息主体区域 -->
      <view class="goods-info-body">
        <!-- 商品名称 -->
        <view class="goods-name">{{goods_info.goods_name}}</view>
        <!-- 收藏 -->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <!-- 运费 -->
      <view class="yf">快递，免运费</view>
    </view>
    <!-- 商品详情信息 -->
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    <!-- 底部购物车区域 -->
    <view class="goods-carts">
      <uni-goods-nav :options="options" :fill="true" :button-group="buttonGroup" @click="onClick"
        @buttonClick="buttonClick" />
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        // 商品详情对象
        goods_info: {},
        options: [{
          icon: 'shop',
          text: '店铺',
          // info: 2,
          infoBackgroundColor: '#007aff',
          infoColor: "#f5f5f5"
        }, {
          icon: 'cart',
          text: '购物车',
          info: 9
        }],
        // 右侧按钮相关信息
        buttonGroup: [{
            text: '加入购物车',
            backgroundColor: 'linear-gradient(90deg, #FFCD1E, #FF8A18)',
            color: '#fff'
          },
          {
            text: '立即购买',
            backgroundColor: 'linear-gradient(90deg, #FE6035, #EF1224)',
            color: '#fff'
          }
        ],
      };
    },
    onLoad(options) {
      // 获取商品id
      const goods_id = options.goods_id
      // 请求商品详情数据的方法
      this.getGoodsDetail(goods_id)
    },
    methods: {
      // 商品详情数据的方法
      async getGoodsDetail(goods_id) {
        const {
          data: res
        } = await uni.$http.get('/api/public/v1/goods/detail', {
          goods_id
        })
        if (res.meta.status !== 200) return uni.$showMsg()
        // 使用字符串的replace()方法，为img标签添加行内的style样式，解决图片上下空白间隙的问题,g全局
        res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display:block;"')
          .replace(/webp /g, 'jpg')
        this.goods_info = res.message
      },
      // 轮播图的预览效果
      preview(index) {
        uni.previewImage({
          // 预览时默认显示图片的索引
          current: index,
          // 所有图片url地址的数据
          urls: this.goods_info.pics.map(x => x.pics_big)
        })
      },
      onClick(e) {
        console.log(e, 'e')
        if(e.content.text === '购物车'){
          // 导航到购物车页面
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      buttonClick(e) {
        console.log(e)
        this.options[2].info++
      }
    }
  }
</script>

<style lang="scss">
  swiper {
    height: 750rpx;

    image {
      width: 100%;
      height: 100%;
    }
  }

  // 商品信息区域样式
  .goods-info-box {
    padding: 10px;
    padding-right: 0;

    .price {
      color: #c00000;
      font-size: 18px;
      margin: 10px 0;
    }

    .goods-info-body {
      display: flex;
      justify-content: space-between;

      .goods-name {
        font-size: 13px;
        margin-right: 10px;
      }

      .favi {
        width: 120px;
        font-size: 12px;
        display: flex;
        flex-direction: column;
        align-items: center;
        border-left: 1px solid #eFeFeF;
        justify-content: center;
        color: gray;
      }
    }

    .yf {
      font-size: 12px;
      color: gray;
      margin: 10px 0;
    }
  }

  .goods-carts {
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    right: 0;
    left: var(--window-left);
    right: var(--window-right);
    bottom: 0;
  }
  .goods-detail-container{
    padding-bottom: 50px;
  }
</style>